Forge World has some new Night Goblin commanders available.
From the website:
The Night Goblin Command Set, designed by Keith Robertson, contains three multi-part resin models: a Night Goblin Warboss on Great Cave Squig, a Night Goblin Boss carrying a Battle Standard, and a Night Goblin Shaman. This fantastic character set is available to pre-order now for despatch from Friday 25th January.